GB814583A - Improvements in or relating to electric switch actuating mechanisms - Google Patents

Improvements in or relating to electric switch actuating mechanisms

Info

Publication number
GB814583A
GB814583A GB23535/57A GB2353557A GB814583A GB 814583 A GB814583 A GB 814583A GB 23535/57 A GB23535/57 A GB 23535/57A GB 2353557 A GB2353557 A GB 2353557A GB 814583 A GB814583 A GB 814583A
Authority
GB
United Kingdom
Prior art keywords
cam
arm
shaft
follower
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23535/57A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jervis B Webb Co
Original Assignee
Jervis B Webb Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jervis B Webb Co filed Critical Jervis B Webb Co
Publication of GB814583A publication Critical patent/GB814583A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H21/285—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift having an operating arm actuated by the movement of the body and mounted on an axis converting its rotating movement into a rectilinear switch activating movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams

Landscapes

  • Switches With Compound Operations (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

814,583. Retractive switches. WEBB CO., J. B. July 25, 1957 [May 16, 1957], No. 23535/57. Class 38 (5). In a non-actuated position of a switch 12, a follower 30 on the pivoted follower arm 31 is urged by a spring 40 into a notch 32 in a circular actuating cam 23, the cam being centred in this position by a spring 21. The ends 24, 25 of the spring abut pins 25, 26 secured to the casing 10 and the cam 23 respectively. Rotation of the cam by means of an actuating arm 44 locked to the cam shaft 19 outside the casing causes the follower 30 to lift and the arm 31 to actuate the switch. The arm 44 is loosely mounted on the shaft 19 and has a toothed hub 50 (Fig. 4) which engages with teeth 56 on a locking piece 53 mounted on a squared extension of the shaft, thus providing for adjustment of the arm relative to the shaft.
GB23535/57A 1957-05-16 1957-07-25 Improvements in or relating to electric switch actuating mechanisms Expired GB814583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US659509A US2964600A (en) 1957-05-16 1957-05-16 Switch actuating mechanism

Publications (1)

Publication Number Publication Date
GB814583A true GB814583A (en) 1959-06-10

Family

ID=24645685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23535/57A Expired GB814583A (en) 1957-05-16 1957-07-25 Improvements in or relating to electric switch actuating mechanisms

Country Status (4)

Country Link
US (1) US2964600A (en)
BE (1) BE560266A (en)
FR (1) FR1181393A (en)
GB (1) GB814583A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3407278A (en) * 1967-04-17 1968-10-22 Essex Wire Corp Oscillatory electric switch construction
US4381437A (en) * 1981-01-08 1983-04-26 Tri-Tech, Inc. Switching device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1774440A (en) * 1928-01-18 1930-08-26 Gen Electric Limit switch
US2328266A (en) * 1941-10-28 1943-08-31 Bliss E W Co Operating mechanism for switches
US2338365A (en) * 1943-06-19 1944-01-04 Fulton Co Switch assemblage
US2422320A (en) * 1944-04-01 1947-06-17 Reeves Pulley Co Preset control
US2522278A (en) * 1947-11-12 1950-09-12 Furnas Electric Co Cam type limit switch assemblage
US2673468A (en) * 1951-07-28 1954-03-30 Westinghouse Electric Corp Limit switch operating mechanism
US2785256A (en) * 1952-10-18 1957-03-12 Honeywell Regulator Co Switch mechanism
US2822439A (en) * 1955-02-10 1958-02-04 Square D Co Electric switch
US2879352A (en) * 1956-06-18 1959-03-24 Gen Motors Corp Control device

Also Published As

Publication number Publication date
BE560266A (en)
FR1181393A (en) 1959-06-15
US2964600A (en) 1960-12-13

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